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laiz [17]
2 years ago
11

A store has 3 separate displays of color markers. There are 14 sets of color markers in each display. There are 15 markers in ea

ch set. What is the total number of markers on display?
A.) 240
B.) 630
C.) 210
D.) 633​
Mathematics
2 answers:
Flura [38]2 years ago
4 0

Answer:

C.) 630

Step-by-step explanation:

14x15=210

210x3=630

Nat2105 [25]2 years ago
4 0

See attachment for answer and math work.

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Answer:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

In order to satisfy this distribution we need that each observation on this case comes from a normal distribution, because since the sample size is not large enough we can't apply the central limit theorem.

Step-by-step explanation:

For this case we have that the sample size is n =6

The sample man is defined as :

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And we want a normal distribution for the sample mean

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

In order to satisfy this distribution we need that each observation on this case comes from a normal distribution, because since the sample size is not large enough we can't apply the central limit theorem.

So for this case we need to satisfy the following condition:

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Because if we find the parameters we got:

E(\bar X) =\frac{1}{n} \sum_{i=1}^n E(X_i) = \frac{n\mu}{n}=\mu

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And the deviation would be:

Sd (\bar X) = \frac{\sigma}{\sqrt{n}}

And we satisfy the condition:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

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Answer:

96/45

Step-by-step explanation:

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Step-by-step explanation:

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This would be the symmetric property!

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Answer:

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